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1 | import * as express from 'express' | |
2 | import * as OAuthServer from 'express-oauth-server' | |
3 | import { OAUTH_LIFETIME } from '../initializers/constants' | |
4 | import { logger } from '../helpers/logger' | |
5 | import { Socket } from 'socket.io' | |
6 | import { getAccessToken } from '../lib/oauth-model' | |
7 | ||
8 | const oAuthServer = new OAuthServer({ | |
9 | useErrorHandler: true, | |
10 | accessTokenLifetime: OAUTH_LIFETIME.ACCESS_TOKEN, | |
11 | refreshTokenLifetime: OAUTH_LIFETIME.REFRESH_TOKEN, | |
12 | continueMiddleware: true, | |
13 | model: require('../lib/oauth-model') | |
14 | }) | |
15 | ||
16 | function authenticate (req: express.Request, res: express.Response, next: express.NextFunction, authenticateInQuery = false) { | |
17 | const options = authenticateInQuery ? { allowBearerTokensInQueryString: true } : {} | |
18 | ||
19 | oAuthServer.authenticate(options)(req, res, err => { | |
20 | if (err) { | |
21 | logger.warn('Cannot authenticate.', { err }) | |
22 | ||
23 | return res.status(err.status) | |
24 | .json({ | |
25 | error: 'Token is invalid.', | |
26 | code: err.name | |
27 | }) | |
28 | .end() | |
29 | } | |
30 | ||
31 | return next() | |
32 | }) | |
33 | } | |
34 | ||
35 | function authenticateSocket (socket: Socket, next: (err?: any) => void) { | |
36 | const accessToken = socket.handshake.query.accessToken | |
37 | ||
38 | logger.debug('Checking socket access token %s.', accessToken) | |
39 | ||
40 | if (!accessToken) return next(new Error('No access token provided')) | |
41 | ||
42 | getAccessToken(accessToken) | |
43 | .then(tokenDB => { | |
44 | const now = new Date() | |
45 | ||
46 | if (!tokenDB || tokenDB.accessTokenExpiresAt < now || tokenDB.refreshTokenExpiresAt < now) { | |
47 | return next(new Error('Invalid access token.')) | |
48 | } | |
49 | ||
50 | socket.handshake.query.user = tokenDB.User | |
51 | ||
52 | return next() | |
53 | }) | |
54 | .catch(err => logger.error('Cannot get access token.', { err })) | |
55 | } | |
56 | ||
57 | function authenticatePromiseIfNeeded (req: express.Request, res: express.Response, authenticateInQuery = false) { | |
58 | return new Promise(resolve => { | |
59 | // Already authenticated? (or tried to) | |
60 | if (res.locals.oauth && res.locals.oauth.token.User) return resolve() | |
61 | ||
62 | if (res.locals.authenticated === false) return res.sendStatus(401) | |
63 | ||
64 | authenticate(req, res, () => resolve(), authenticateInQuery) | |
65 | }) | |
66 | } | |
67 | ||
68 | function optionalAuthenticate (req: express.Request, res: express.Response, next: express.NextFunction) { | |
69 | if (req.header('authorization')) return authenticate(req, res, next) | |
70 | ||
71 | res.locals.authenticated = false | |
72 | ||
73 | return next() | |
74 | } | |
75 | ||
76 | function token (req: express.Request, res: express.Response, next: express.NextFunction) { | |
77 | return oAuthServer.token()(req, res, err => { | |
78 | if (err) { | |
79 | return res.status(err.status) | |
80 | .json({ | |
81 | error: err.message, | |
82 | code: err.name | |
83 | }) | |
84 | .end() | |
85 | } | |
86 | ||
87 | return next() | |
88 | }) | |
89 | } | |
90 | ||
91 | // --------------------------------------------------------------------------- | |
92 | ||
93 | export { | |
94 | authenticate, | |
95 | authenticateSocket, | |
96 | authenticatePromiseIfNeeded, | |
97 | optionalAuthenticate, | |
98 | token | |
99 | } |